Using the process of elimination, we will be able to determine the answer. So, 5x+3y=-10 multiply it by *3 to change the equation into 15x+9y=-30. Then to change 3x+5y=-6 multiply it by *5, to change it into 15x+25y=-30. So now with these two equations 15x+9y=-30 and 15x+25y=-30, use subtraction to get rid of the variable x.
Thus,
15x+9y=-30
-
15x+25y=-30
which will leave you with
-16y=0
thus, y=0
Then, plug y back into the original equation to find x
5x+3(0)=-10
5x=-10
x=-2
Thus the point of intersection is (-2,0)
-2 being the x, and y being 0.
EXPLANATION:
600-100+500+300
= 1300 feet
ANSWER: 1300 feet is the submarine’s final depth.
Hope it helps u!
Answer:
Please mark as Brainliest :)
Step-by-step explanation:
Answer: 135 Degrees
Step-by-step explanation:
There are 540 degrees in a pentagon, and we have three right angles. Three right angles measures 270 degrees, half of 540. So we have 270 degrees left, and we divide it by two since the angles are equal and get 135 degrees.
Answer:
1 hour 45 minutes.
Step-by-step explanation:
10 + 20 + 60 + 15 = 105 minutes,
